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Unreal Engine C++ API Reference > Runtime > Engine > Materials > UMaterialInstance
References
| Module | Engine |
| Header | /Engine/Source/Runtime/Engine/Classes/Materials/MaterialInstance.h |
| Include | #include "Materials/MaterialInstance.h" |
| Source | /Engine/Source/Runtime/Engine/Private/Materials/MaterialInstance.cpp |
bool SetVectorParameterByIndexInternal
&40;
int32 ParameterIndex,
FLinearColor Value
&41;